After-hours buzz: Texas Instruments, IBM, Best Buy & more

Check out which companies are making headlines after the bell Tuesday:

Texas Instruments - The chipmaker narrowed its third-quarter earnings and revenue guidance. The company said it now expects to earn between 51 and 55 cents a share on revenue of between $3.15 billion and $3.29 billion. Analysts currently expect the company post earnings of 53 cents a share on sales of $3.23 billion. Shares slid in extended-hours trading.

Synnex - The IT supply chain services company acquired IBM's customer care business in a deal worth $505 million. In addition, Synnex entered a multi-year agreement to become IBM's strategic business partner. Shares of Synnex rallied in extended-hours trading. IBM also inched slightly higher.

Best Buy - CEO Hubert Joly sold 350,467 stock options and 100,686 shares of the company, according to the most recent 8K filing. Shares of the company slipped in extended-hours trading.

International Paper - The pulp and paper company lifted its quarterly dividend by 17 percent to 35 cents a share and announced a $1.5 billion stock repurchase program. Shares climbed in extended-hours trading.